Mount 1″ Discs on M14 OR M20 mandrels. Home>Power Tool Accessories For Woodcarvers>Rotary Carving Tool Accessories>Scotch-Brite Bristle Discs>Mount 1″ Discs on M14 OR M20 mandrels. Mount 1″ Discs on M14 OR M20 mandrels. CA $3.64 Screw type mandrels with 1/8″ shank for mounting wheels, stones, felt bobs, small buffs, and other unmounted accessories with 1/8″ arbor holes. M14 Foredom Mandrel 1/8" Shank and 1/8" Arbor Hole Capacity quantity M14 Foredom Mandrel 1/8" Shank and 1/8" Arbor Hole CapacityCA $3.64 M20 Foredom Mandrel 1/8" Shank and 1/8" Arbor Hole Capacity quantity M20 Foredom Mandrel 1/8" Shank and 1/8" Arbor Hole CapacityCA $3.64 Add to cart Category: Scotch-Brite Bristle Discs Share000 Related products CA $23.36 View options 3M Radial Bristle Discs 1 inch Diameter 120grit Scotch-Brite Bristle Discs 3M Scotch-Brite Radial Bristle Disc, 1" dia, 1/8" arbor hole, 120 grit (white), Pack of 6. Use with mandrels M2, M14, and M20. CA $23.36 CA $23.36 View options CA $18.55 Add to cart Set of 6 Bristle Discs 3/4" dia in 220 Grit Red Scotch-Brite Bristle Discs CA $18.55 CA $18.55 Add to cart CA $3.64 Add to cart M6 Mandrel 1/8" Shank with 1/16" arbor hole Scotch-Brite Bristle Discs, Foredom Mandrels CA $3.64 CA $3.64 Add to cart CA $18.55 Add to cart Set of 6 Bristle Discs 3/4" dia in Pumice Grit Pink Scotch-Brite Bristle Discs CA $18.55 CA $18.55 Add to cart